Process of forming concrete walls.



No. 640,653. Patented Ian. 2,1900.

c. GUY. PROCESS OF FORMING CONCRETE WALLS.

(Application filed Oct. 80, 1897.)

(Na Model.)

//v VENTOH Zar-ies 6% CONCRETE CHEESE CLOTH CHEESE CLOTH FLOOR 0:?CEILING flRCH WORK.

Wl TNE SSE S ATTORNEYS.

PATEN CHARLES GUY, or TOPEKA, KANSAS.

PROCESS OF FORMING CONCRETE WALLS SPECIFICATION forming part of LettersPatent No. 640,653, dated January 2, 1900.

Application filed October 30, 1897. Serial No. 656,981. (No specimens.)

To all whom it may concern.-

Be it known that I, CHARLES GUY, of Topeka, in the county of Shawnee andState of Kansas, have invented an Improved Process for FormingMonolithic Concrete Structures or WValls, of which the following is afull speoification.

In the accompanying drawings, Figure 1 is a vertical sectionillustrating the application of the mold for forming a vertical wall.Fig. 2 illustrates the application of the same for a horizontal surfaceor wall. Fig. 3 is a view showing the application of the invention toarchwork.

My invention has for its object to mold concrete walls, ceilings,arches, piers, or other monolithic structures in an improved manexceptby an after coating, which destroys the monolithic feature.

In the drawings C indicates a sheeting or rough board face for askeleton frame or crib 13, having a brace A. Upon such face 0 isplastered a layer of staff, lime, gypsum, or any plastering material ofsuitable strength, set ting qualities, and consistency for the purposeshereinafter mentioned. After this plaster has hardened its exposedsurface is covered with cheese cloth or other similar cheap, strong, andopen-grained fabric, held 011 by paste of flour or other suitablematerial. The monolith is then constructed, and after it has been givenample time to properly harden or set the structure A, B, and O isremoved. The staff or other plaster D, having been made barely strongenough to resist the compression coming against it from the ramming ortamp ing of the concrete, but not having any trans verse strength, nowfalls to pieces, and the cloth is readily pulled off of the concrete,leavin ga'handsome granular finish,which is not obtained by the oiled oroil-papered forms. The

lar surface in artificial stonework is a better imitation of stone and aricher appearance. The forms may be and often are built ofgalvanized-sheet-iron, zinc, or other metal instead of lumber. Theplaster and cloth are then applied to the metallic form. In any case theplaster needs to be only thick enough to thoroughly cover all roughnessof surface of the form to which it is applied. When a long wall orcornice or any large surface is built, a lap of muslin, one piece uponor over another, leaves no visible sign of such lapping, and the plastercovers all joints where one mold is slipped ahead of another, so thatthe highest effects in finish are by this means obtained, while withoiled Wood or oil-paper the laps or joints almost invariably show insuch manner as to be unartistic and objectionable.

If a wall has a coping or has buttresses or ofisets or if a ceiling orcornice has in section numerous renterin g angles, reversed curves, orother irregularities, the cheese-cloth fits them all, and even if it isdoubled over itself it is just as effective as on a plane surface.

I claim and desire to secure by Letters Patcutwall for architecturalpurposes, the same consisting in erecting crib or other structurehaving' a; face corresponding to the desired form fabric, with adheringpl aster, of? the coficrete' CHAS. GUY; Witnesses:

H. V. HINOKLEY, BENJAMIN B1ELLINGER5 E. G. VOILES, WILL. W. JONES;

